JP6938347B2 - Vehicle air conditioner - Google Patents

Description

The present invention relates to a two-phase flow type vehicle air conditioner.

Conventionally, a two-phase flow type air conditioner including a two-layer flow type blower unit that takes in outside air (outside air of a vehicle) and / or inside air (inside air of a vehicle) and blows air, and an air conditioner unit connected to the blower unit. Is known (see, for example, Patent Document 1). The internal space of the two-phase flow type blower unit is divided into upper and lower two-layer passages by a partition plate. An air conditioner using such a two-phase flow type blower unit operates in an inside air mode that takes in inside air into the upper and lower aisles, operates in an outside air mode that takes in outside air into the upper and lower aisles, and operates in an outside air mode. It is possible to operate in the inside / outside air two-phase flow mode in which the outside air is taken into the upper passage and the inside air is taken into the lower passage.

By the way, such a blower unit may take in rainwater or the like together with the outside air from the outside of the vehicle. Rainwater, etc. taken into the blower unit is carried together with the outside air. Therefore, in both the outside air mode and the inside / outside air two-phase flow mode, there are many opportunities for rainwater or the like to enter the upper passage through which the outside air flows. In order to discharge rainwater and the like taken into the upper passage of the blower unit to the outside of the air conditioner, for example, in Patent Document 1, a plurality of communication holes are provided in the partition plate that divides the internal space of the blower unit into upper and lower parts, and the upper passage is provided. Rainwater and the like inside are allowed to flow into the lower passage and flow into the air conditioning unit from the lower passage. Then, the rainwater that has flowed into the air conditioning unit is discharged from the drainage port provided at the bottom of the air conditioning unit.

However, the passage in the lower layer of the blower unit is not always configured to allow rainwater or the like to flow into the air conditioning unit. For example, as shown in Patent Document 2, depending on the layout of the vehicle, the air outlet of the blower unit may be inclined upward toward the air conditioning unit. In such a case, rainwater or the like in the lower passage may not flow into the air conditioning unit and may stay in the blower unit.

Therefore, regardless of the blowing direction of the blower unit (whether or not the bottom surface of the lower passage of the blower unit is configured to have an upward inclination), rainwater or the like taken into the upper passage is inside the blower unit. It is desirable to design the blower unit and the air conditioning unit so that they can be prevented from staying in the air conditioner. Further, in general, it is desired to design the blower unit and the air conditioning unit so that the assembling work thereof is easy.

JP-A-2015-67260 Japanese Unexamined Patent Publication No. 10-16534

The present invention is a two-layer flow type air conditioner, in which rainwater or the like taken into an upper layer passage stays in the blower unit (blower part) regardless of the blowing direction of the blower unit (blower part). An object of the present invention is to provide an air conditioner that can be prevented and that is easy to assemble the blower unit (blower unit) and the air conditioner unit (air conditioning unit).

According to a preferred embodiment of the present invention, the air conditioner for a vehicle.
A blower having a motor, an impeller that is rotationally driven by the motor to blow out air, an internal space that houses the impeller, and a scroll housing that has a fitting that opens in the circumferential direction.
An air conditioning unit having a cooling heat exchanger, an internal space accommodating the cooling heat exchanger, and an air conditioning case having a connecting portion connected to the fitting portion of the scroll housing.
With
The blower portion further divides the region between the inner peripheral surface of the scroll housing and the outer peripheral surface of the impeller, and the internal space of the fitting portion into an upper air flow path and a lower air flow path. Has a blower partition plate to
The downstream end of the fitting portion in the flow of air from the fitting portion to the cooling heat exchanger is an upper layer fitting end located above the blower partition plate and the blower partition. Has a lower layer fitting end located below the plate,
The connection portion has an upper layer connection end portion connected to the upper layer fitting end portion and a lower layer connection end portion connected to the lower layer fitting end portion.
In the flow of air from the fitting portion to the cooling heat exchanger, the lower layer connection end portion is located on the upstream side of the downstream end side of the blower partition plate, and the upper layer fitting end portion is located on the upstream side. , An air conditioner is provided that is located at the same position as the downstream edge or downstream of the downstream edge.

According to the above-described embodiment of the present invention, in a two-phase flow type air conditioner, it is possible to prevent rainwater or the like taken into an upper layer passage from staying in the blower portion regardless of the blowing direction of the blower portion. It is possible to provide an air conditioner capable of easily assembling the blower unit and the air conditioning unit.

It is sectional drawing which shows typically the structure of the air-conditioning part and the air-conditioning part of the air-conditioning apparatus according to the 1st Embodiment of this invention. It is a perspective view which shows typically the scroll housing of the air conditioner shown in FIG. 1, the partition plate of a blower part, and the connection part of an air conditioner case. It is a top view which shows typically the lower scroll member, the lower air-conditioning case member, the air-conditioning part partition plate, and the air-conditioning part partition plate of the air-conditioning apparatus shown in FIG. FIG. 2 is a perspective view schematically showing a scroll housing of an air conditioner, a partition plate of a blower portion, and a connection portion of an air conditioner case according to a modified example of the first embodiment of the present invention. It is a figure corresponding to FIG. 3, and is the top view which shows typically the lower scroll member, the lower air-conditioning case member, the air-conditioning part partition plate, and the air-conditioning part partition plate shown in FIG. FIG. 2 is a perspective view schematically showing a scroll housing of an air conditioner, a partition plate of a blower portion, and a connection portion of an air conditioner case according to another modification of the first embodiment of the present invention. be. It is a figure corresponding to FIG. 1, and is the cross-sectional view which shows typically the structure of the air-conditioning part and the air-conditioning part of the air-conditioning apparatus according to the 2nd Embodiment of this invention. It is a figure corresponding to FIG. 2, and is the perspective view which shows typically the scroll housing of the air conditioner shown in FIG. 7, the partition plate of a blower part, and the connection part of an air conditioner case. It is sectional drawing which shows typically the water leakage prevention plate provided in the scroll housing shown in FIG. 8 along the extending direction of the water leakage prevention plate. FIG. 1 is a cross-sectional view schematically showing the structure of a blower portion and an air conditioning portion of an air conditioner according to a third embodiment of the present invention. FIG. 3 is a plan view schematically showing a lower scroll member, a lower air conditioning case member, a blower partition plate, and an air conditioning portion partition plate of the air conditioner shown in FIG. 10.

<First Embodiment>
The first embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view schematically showing the structure of an air conditioner for a vehicle. Further, FIG. 2 is a perspective view schematically showing the scroll housing of the air conditioner shown in FIG. 1, the partition plate of the blower portion, and the connection portion of the air conditioner case, and describes the assembling direction of the scroll housing and the air conditioner case. It is a figure for. Further, FIG. 3 is a plan view schematically showing the configurations of the lower scroll member, the lower air conditioning case member, the blower partition plate, and the air conditioning portion partition plate of the air conditioner shown in FIG. In addition, in FIGS. 1 to 3 and 4 to 11 described later, the shapes of the scroll housing, the partition plate and the air conditioning case are shown in a simplified manner for the sake of clarification of the illustration, and FIGS. 2 to 6 and 8 to 8 to FIG. In FIGS. 9 and 11, the illustration of each outlet passage of the air conditioning case is omitted.

The vehicle air conditioner 1 of the present embodiment is a two-phase flow air conditioner, and has a blower unit 10 and an air conditioning unit 100 connected to the blower unit 10. The blower unit 10 forms an air flow, and the air conditioning unit 100 dehumidifies the air from the blower unit 10. The air conditioning unit 100 is provided with a discharge port 131 for discharging water generated by dehumidification.

First, the blower portion 10 will be described with reference to FIG. The blower portion 10 shown in FIG. 1 is a one-sided suction type centrifugal blower portion. The blower portion 10 has an impeller 5. The impeller 5 has a plurality of blades 6 forming a blade row 6A arranged in the circumferential direction on the outer peripheral portion thereof. The impeller 5 is rotationally driven around the rotation axis Ax by the motor 13, and the air sucked from the upper side in the axial direction (one end side in the axial direction) into the space inside the radial direction of the blade row of the impeller 5 is directed in the centrifugal direction. Blow out. Reference numeral 9 is an air flow deflection member integrally molded with the impeller 5. The air flow deflection member 9 is sometimes called a cone. The air flow deflection member 9 is continuous with the fixing portion 11 provided at the central portion of the impeller 5 that is rotationally driven, and the fixing portion 11 is fixed to the rotating shaft 12 of the motor 13 so that the impeller 5 Is rotatably supported by the motor 13.

In this specification, for convenience of explanation, the direction of the rotation axis Ax is referred to as an axial direction. The axial direction coincides with the vertical direction in FIG. 1, and as a result, when the air conditioner is actually incorporated in the vehicle, the vertical direction of each part of the air conditioner coincides with the direction of the rotation axis Ax. It is not limited to. Further, in the present specification, unless otherwise specified, the direction of the radius of a circle drawn on a plane orthogonal to the rotation axis Ax with an arbitrary point on the rotation axis Ax as the center is referred to as a radial direction. The circumferential direction of a circle is called the circumferential direction or the circumferential direction.

The impeller 5 is housed in a substantially cylindrical internal space of the scroll housing 50. The scroll housing 50 has a suction port 22 that opens upward in the axial direction and a fitting portion 51 that opens in the circumferential direction. As shown in FIGS. 1 and 2, the scroll housing 50 has an upper scroll member 61 and a lower scroll member 62 located below the upper scroll member 61. The lower scroll member 62, together with the upper scroll member 61, defines an internal space for accommodating the impeller 5 and a fitting portion 51.

The blower portion 10 further includes a separation cylinder 30 inserted into the scroll housing 50, and a blower portion partition plate 20 extending inward in the radial direction from the outer peripheral wall 50A of the scroll housing 50.

The separation cylinder 30 is inserted into the scroll housing 50 via the suction port 22. The central portion 31 to the lower portion 32 of the separation cylinder 30 pass through the suction port 22 and extend axially to the space inside the blade row 6A of the impeller 5 in the radial direction. The upper portion 33 of the separation cylinder 30 is located outside the scroll housing 50 (axially above the suction port 22). The lower end of the separation cylinder 30 is located in the space inside the blade row 6A of the impeller 5 in the radial direction.

The cross section of the upper portion 33 of the separation cylinder 30 (meaning the cross section in the direction orthogonal to the rotation axis Ax) is substantially rectangular. The cross section of the central portion 31 of the separation cylinder 30 is circular (or substantially circular). The cross-sectional shape of the separation cylinder 30 smoothly changes from a rectangle to a circle as it approaches the central portion 31 from the upper portion 33. The lower portion 32 (outlet side end) of the separation cylinder 30 has a flare shape that increases in diameter as it approaches the lower end, and the lower end is circular. In the illustrated example, the separation cylinder 30 is curved between the central portion 31 and the upper portion 33, but is not limited to this.

The entire separation cylinder 30 may be integrally molded by resin injection molding. Instead of this, after the inlet side end (upper part) 33 of the separation cylinder 30, the central part 31 and the outlet side end (lower part) 32 of the separation cylinder 30 are separately molded, they are bonded or fitted, for example. It may be connected by a method.

The separation cylinder 30 has a first air flow that allows the air flow sucked into the scroll housing 50 to flow into the upper half of the blade 6 through the outside of the separation cylinder 30 and the blade through the inside of the separation cylinder 30. It is divided into a second air flow that flows into the lower half of 6. The first air flow passes through a ring-shaped region outside the outer peripheral surface of the separation cylinder 30 of the suction port 22 of the scroll housing 50, and is the upper half of the blade row 6A of the impeller 5 (the portion close to the suction port 22). Inflow to. The second air flow enters the inside of the separation cylinder 30 from the upper end of the separation cylinder 30 and flows into the lower half of the blade row 6A of the impeller 5 (the portion far from the suction port 22). Therefore, the ring-shaped region outside the outer peripheral surface of the separation cylinder 30 of the suction ports 22 of the scroll housing 50 is the first suction port of the scroll housing 50, and the opening at the upper end of the separation cylinder 30 is the second suction port of the scroll housing 50. Can also be regarded as.

The blower partition plate 20 vertically (axis) the area between the inner peripheral surface of the scroll housing 50 and the outer peripheral surface of the impeller 5 in the internal space of the scroll housing 50, and the internal space of the fitting portion 51. It is divided (in the direction) to form an upper upper air flow path 10A and a lower lower air flow path 10B extending in the circumferential direction along the inner peripheral surface of the scroll housing 50. The first air flow that has flowed into the upper half of the blade 6 through the outside of the separation cylinder 30 then flows into the upper air flow path 10A. Further, the second air flow that has flowed into the lower half of the blade 6 through the inside of the separation cylinder 30 then flows into the lower air flow path 10B. The blower partition plate 20 is a plate-shaped member shaped as a separate body from the upper scroll member 61 and the lower scroll member 62. As can be understood from FIG. 2, the blower partition plate 20 is arranged between the upper scroll member 61 and the lower scroll member 62, and fits the upper scroll member 61 and the lower scroll member 62 at the edge thereof. It fits.

The blower unit 10 as described above may take in rainwater or the like together with the outside air from the outside of the vehicle. In order to guide such rainwater or the like to the air-conditioning section 100 and discharge it from the discharge port 131, the blower section partition plate 20 of the present embodiment has the lower blower path 100B of the air-conditioning section 100 as described later. It extends to the upper part of.

An air intake housing 70 is connected to the scroll housing 50. The scroll housing 50 and the air intake housing 70 may be integrally molded, or may be manufactured separately and then connected by a method such as screwing, bonding, or fitting.

The air intake housing 70 has a first opening (outside air introduction port) 75, a second opening (inside air introduction port) 76, and a third opening (inside air introduction port) 77. The first opening 75 is connected to or near the outlet (not shown) of the outside air introduction path provided in the vehicle, and the outside air (air taken in from the outside of the vehicle) is passed through the first opening 75. ) Can be introduced into the air intake housing 70. The second opening 76 and the third opening 77 are open in the vehicle interior, and the inside air (vehicle interior air) can be introduced into the air intake housing 70.

Inside the air intake housing 70, a first switching door 73 and a second switching door 74 of a type called a rotary door are provided. The first switching door 73 can rotate around a rotating shaft 73R extending in the horizontal direction (vertical direction on the paper in FIG. 1) to close the first opening 75 or the second opening 76. The second switching door 74 can rotate around a horizontally extending rotating shaft 74R to close the third opening 77.

The first switching door 73 has a first position (see FIG. 1) that opens the first opening 75 and closes the second opening 76, and a second position that closes the first opening 75 and opens the second opening 76. Can move to and from (not shown). The second switching door 74 can be moved between a first position (see FIG. 1) that opens the third opening 77 and a second position (not shown) that closes the third opening 77.

In the air intake housing 70, there is contamination of dust, particles, etc. contained in the air between the first to third openings 75 to 77 and the inlet opening provided at the upper end of the upper portion 33 of the separation cylinder 30. A filter 79 for removing substances and offensive odors is provided. The filter 79 is provided on the inlet opening side of the separation cylinder 30 with respect to the operating range of the first switching door 73 and the second switching door 74.

Next, the air conditioning unit will be described. As shown in FIG. 1, the air conditioning unit 100 has an air conditioning case 150. The air-conditioning case 150 has a connecting portion 151 forming an opening for connecting to the fitting portion 51 of the scroll housing 50, so that the air flow formed by the blower portion 10 flows into the air-conditioning case 150. A cooling heat exchanger (evaporator) 110 and a heating heat exchanger (heater core) 140 are arranged in the air conditioning case 150. The cooling heat exchanger 110 is arranged on the upstream side of the air flow from the blower portion 10 with respect to the heating heat exchanger 140.

In the illustrated example, the air conditioning case 150 has an upper air conditioning case member 161 and a lower air conditioning case member 162 located below the upper air conditioning case member 161. The lower air-conditioning case member 162, together with the upper air-conditioning case member 161, defines an internal space for accommodating the cooling heat exchanger 110 and the heating heat exchanger 140. The upper air conditioning case member 161 is connected to the upper scroll member 61 (thus, the upper scroll member 61 is fitted with the upper air conditioning case member 161). Further, the lower air-conditioning case member 162 is connected to the lower scroll member 62 (thus, the lower scroll member 62 is fitted with the lower air-conditioning case member 162). Flange is provided in the vicinity of the ends of the fitting portions 51 of the scroll members 61 and 62 on the air-conditioning case members 161, 162 side (upper layer fitting end 91 and lower fitting end 92, which will be described later). You may be. Further, flanges are also provided in the vicinity of the scroll member 61, 62 side ends (upper layer connection end 191 and lower layer connection end 192, which will be described later) of the connection portions 151 of the air conditioning case members 161, 162, respectively. May be good. Then, the scroll members 61 and 62 and the air conditioner case members 161, 162 may be assembled by fastening these flanges to each other with bolts or the like.

The internal space of the air conditioning case 150 is also vertically divided into an upper air passage 100A and a lower air passage 100B. The upper portion 110A of the cooling heat exchanger 110 is located in the upper air passage 100A, and the lower portion 110B of the cooling heat exchanger 110 is located in the lower air passage 100B. The cooling heat exchanger 110 lowers the humidity of the air by taking heat from the air passing therethrough and condensing the moisture in the air when the humidity of the air is high. Further, the upper portion 140A of the heating heat exchanger 140 is located in the upper air passage 100A, and the lower portion 140B of the heating heat exchanger 140 is located in the lower air passage 100B. The heating heat exchanger 140 heats the air passing therethrough.

As shown in FIG. 1, in order to discharge the condensed water condensed by the cooling heat exchanger 110 to the outside of the air conditioning device 1, drainage is performed on the bottom of the air conditioning case 150 (hence, the lower air conditioning case member 162). Region 130 is provided. The drainage region 130 is provided at a position below the cooling heat exchanger 110. The drainage region 130 has a discharge port 131 that communicates with the inside and the outside of the air conditioning case 150 and discharges condensed water, and an inclined surface that inclines downward toward the discharge port 131 so as to guide the condensed water to the discharge port 131. It has 132 and. As can be seen from FIG. 1, the drainage region 130 extends to the upstream side of the cooling heat exchanger 110 in the air flow from the blower 10.

Here, as described above, the above-mentioned blower unit 10 may take in rainwater or the like together with the outside air from the outside of the vehicle. The rainwater or the like taken into the blower portion 10 is carried together with the outside air. Therefore, there are many opportunities for rainwater or the like to enter the upper passage through which the outside air flows in two of the three operation modes described later in the air conditioner 1.

In order to guide the rainwater or the like W that has entered the upper air flow path 10A into the air conditioning unit 100 and discharge it from the discharge port 131, the blower partition plate 20 of the present embodiment is on the lower side of the blower 10. It extends from above the air flow path 10B to above the lower air passage 100B of the air conditioning portion 100. That is, the downstream end side 20d of the blower partition plate 20 in the air flow from the fitting portion 51 to the cooling heat exchanger 110 is the upper air flow path 10A and the lower air flow path 10B from the upper air passage 100A. It is located at a position overlapping the lower air passage 100B when viewed in the direction toward the lower air passage 100B. As a result, the rainwater or the like W that has entered the upper air flow path 10A of the blower portion 10 is configured to have an upward inclination regardless of the blowing direction of the blower portion 10 (the bottom surface of the lower air flow path 10B is inclined upward). Whether or not it is), it can be guided to the lower air passage 100B of the air conditioning unit 100. That is, the rainwater or the like W guided to the upper side of the lower air passage 100B by the air blower partition plate 20 can flow down to the lower air passage 100B at the downstream end side 20d of the air blower partition plate 20. If the rainwater or the like W can be guided to the lower air conditioning passage 100B, the possibility that the rainwater or the like W stays in the air blowing unit 10 is reduced, and the rainwater or the like W is discharged from the discharge port 131 of the air conditioning unit 100. Becomes easier. By guiding the rainwater or the like W with the seamless plate 20, the rainwater or the like W reaches the upper side of the lower air passage 100B of the air conditioning unit 100, and the upper air flow path of the air conditioning unit 10 is reached. There is no risk of leakage from 10A to the lower air flow path 10B.

In the illustrated example, the blower partition plate 20 extends above the drainage region 130 of the air conditioning section 100. That is, the downstream end side 20d of the blower partition plate 20 overlaps the drainage region 130 when viewed in the direction from the upper air flow path 10A and the upper air passage 100A toward the lower air flow path 10B and the lower air passage 100B. In position. Therefore, regardless of the shape of the lower air passage 10B and the lower air passage 100B and the blowing direction of the air passage 10, the blower partition plate 20 drains rainwater or the like W that has entered the upper air flow path 10A into the drainage region 130. Can guide you to. Then, the rainwater or the like W that has flowed into the drainage region 130 is guided to the discharge port 131 by the inclined surface 132 that inclines downward toward the discharge port 131, and is discharged to the outside of the air conditioner 1 through the discharge port 131.

Further, the upper surface 20S of the blower partition plate 20 is substantially horizontal or has a downward inclination from the portion corresponding to the winding end 50e of the inner peripheral surface of the scroll housing 50 to the downstream end side 20d of the blower partition plate 20. do. As a result, it becomes easy to guide the rainwater or the like W that has entered the upper air flow path 10A to the downstream end side 20d of the blower partition plate 20, and therefore to the lower blower 100B of the air conditioning part 100. It is preferable that the downward inclination of the blower partition plate 20 to the downstream end side 20d is established when the vehicle air conditioner 1 is mounted on the vehicle and the vehicle is located on a substantially horizontal road surface. .. When mounted on a vehicle, W such as rainwater that has entered the upper layer can be discharged to the outside of the air conditioner 1. More preferably, the downward slope is established even when the vehicle is located on a sloped road surface. W such as rainwater that has entered the upper layer can be more reliably discharged to the outside of the air conditioner 1.

By the way, it is desired that the blower unit 10 and the air conditioning unit 100 are designed so that the assembling work is easy. Specifically, it is desired that one of the blower unit 10 and the air conditioning unit 100 can be connected to the other in the vehicle from a plurality of directions. However, if the blower partition plate extends from the fitting portion of the blower portion, the blower partition plate extending from the fitting portion is connected to the air conditioning portion in the assembling work between the blower portion and the air conditioning portion. Need to be inserted in. Therefore, the assembling direction of the blower portion and the air conditioning portion is limited to the direction in which the blower portion partition plate extends from the fitting portion. Here, the assembling work of the blower unit 10 and the air conditioning unit 100 may be performed in a limited space in the vehicle, or may be performed in advance before the air conditioner is mounted on the vehicle. However, regardless of which process is adopted, if the assembling direction of the blower portion 10 and the air conditioning portion 100 is limited to one direction, the assembling work becomes difficult and the productivity may be lowered.

In the air-conditioning unit 10 and the air-conditioning unit 100 of the present embodiment, even if the air-conditioning unit partition plate 20 extends above the lower air-conditioning passage 100B of the air-conditioning unit 100 as described above, the air-conditioning unit 10 and the air conditioning unit 100 A device has been devised so that the assembling work of the unit 100 can be performed from a plurality of directions. In the example shown in FIGS. 1 to 3, the blower portion 10 and the air harmonizing portion 100 have the fitting portion 51 and the connection portion 151, and at least the blower portion partition plate 20 is connected to the lower air flow path 10B of the blower portion 10. From the extending direction D1, from the direction D2 parallel to the downstream end side 20d of the blower partition plate 20, and from the vertical direction D3 (connecting portion 151 from below the fitting portion 51, or fitting portion 51). It is configured so that it can be connected (from above the connecting portion 151). Hereinafter, the configurations of the blower portion 10 and the air conditioning portion 100 (particularly the configuration of the fitting portion 51 and the connecting portion 151) will be described in detail.

First, in the air flow from the fitting portion 51 of the blower portion 10 to the cooling heat exchanger 110, the downstream end portion of the fitting portion 51 is an upper layer fitting end located above the blower portion partition plate 20. It has a portion 91 and a lower layer fitting end portion 92 located below the blower portion partition plate 20. In the illustrated example, the upper layer fitting end 91 is a downstream end of a portion corresponding to the fitting 51 of the upper scroll member 61 in the air flow. Further, the lower layer fitting end portion 92 is a downstream end portion of a portion corresponding to the fitting portion 51 of the lower scroll member 62 in the air flow.

Further, the connecting portion 151 of the air conditioning portion 100 has an upper layer connecting end portion 191 connected to the upper layer fitting end portion 91 and a lower layer connecting end portion 192 connected to the lower layer fitting end portion 92. In the illustrated example, the upper layer fitting end portion 91 is an upstream end portion of the portion corresponding to the connection portion 151 of the upper air conditioning case member 161 in the air flow. Further, the lower layer connection end portion 192 is an upstream end portion of the portion corresponding to the connection portion 151 of the lower air conditioning case member 162 in the air flow.

Then, in order to enable the assembling work of the blower portion 10 and the air conditioning portion 100 from a plurality of directions, the fitting portion 51 of the blower portion 10 and the connecting portion 151 of the air conditioning portion 100 are as shown in FIGS. , Is formed as follows. That is, in the air flow from the fitting portion 51 to the cooling heat exchanger 110, the lower layer connection end portion 192 is located on the upstream side of the downstream end side 20d of the blower partition plate 20, and the upper layer fitting end is located. The portion 91 is located at the same position as the downstream end side 20d. In other words, in the air flow, the portion corresponding to the fitting portion 51 of the upper scroll member 61 is on the downstream side of the portion corresponding to the fitting portion 51 of the lower scroll member 62, and the blower partition plate 20 is located. It extends to the downstream end side 20d of. The upper air conditioning case member 161 is formed corresponding to such an upper scroll member 61.

Further, in the examples shown in FIGS. 1 to 3, when viewed in the direction from the upper air flow path 10A to the lower air flow path 10B, the lower layer fitting end portion 92 is the downstream end side 20d of the blower partition plate 20. (See FIG. 3).

Since the fitting portion 51 and the connecting portion 151 are configured as described above in relation to the blower portion partition plate 20, the assembling work of the blower portion 10 and the air harmonizing portion 100 can be performed by the fitting portion 51 and the connecting portion. 151 is at least from the direction D1 in which the blower partition plate 20 extends from the lower air flow path 10B of the blower portion 10, from the direction D2 parallel to the downstream end side 20d of the blower partition plate 20, and up and down. It may be done so as to connect from direction D3 (connecting portion 151 from below fitting portion 51 or fitting portion 51 from above connecting portion 151).

In the example shown in FIG. 1, the blower partition plate 20 extends to the vicinity of the cooling heat exchanger 110. Of the internal spaces of the scroll housing 50 and the air conditioning case 150, the space around the impeller 5 and the space between the winding end 50e on the inner peripheral surface of the scroll housing and the cooling heat exchanger 110 are blown air. It is divided into upper and lower parts by a partition plate 20. More specifically, the blower partition plate 20 includes the space around the impeller 5 among the internal spaces of the scroll housing 50 and the air conditioning case 150, the winding end 50e of the inner peripheral surface of the scroll housing, and the lower scroll member. The space between the lower layer fitting end portion 92 of 62 is divided into an upper air flow path 10A and a lower air flow path 10B. Further, the blower partition plate 20 is located between the lower layer fitting end 92 of the lower scroll member 62 and the downstream end side 20d of the blower partition plate 20 in the internal space of the scroll housing 50 and the air conditioning case 150. The space is divided into an upper air flow path 10A and a lower air passage 100B.

Further, an air conditioning portion partition plate 120 is arranged on the downstream side of the air flow of the blower portion partition plate 20. In the example shown in FIG. 1, the air-conditioning section partition plate 120 has an upper air passage in the space between the cooling heat exchanger 110 and the heating heat exchanger 140 in the internal space of the air conditioning case 150. It is divided into 100A and the lower air passage 100B.

The blower partition plate 20 does not have to extend to the vicinity of the cooling heat exchanger 110. In this case, an air conditioning portion partition plate may be further arranged between the downstream end side 20d of the blower portion partition plate 20 and the cooling heat exchanger 110.

As can be understood from FIG. 2, the portion of the blower partition plate 20 extending upward from the lower air passage 100B of the air conditioning portion 100 is located between the upper scroll member 61 and the lower air conditioning case member 162. Be placed. Then, the portion of the blower partition plate 20 is fitted with the upper scroll member 61 and the lower air conditioning case member 162 at the edge portion thereof.

As described above, the upper portion 140A of the heating heat exchanger 140 is located in the upper air passage 100A, and the lower portion 140B of the heating heat exchanger 140 is located in the lower air passage 100B. However, the upper portion 140A of the heating heat exchanger 140 does not occupy the entire cross section of the upper air passage 100A. In the region where the heating heat exchanger 140 of the upper air passage 100A does not exist, the air flowing through the upper air passage 100A does not pass through the upper portion 140A of the heating heat exchanger 140 (bypassing the upper portion 140A) for heating. It is a bypass path 153A that allows flow to the downstream side of the heat exchanger 140. Similarly, the lower portion 140B of the heating heat exchanger 140 does not occupy the entire cross section of the lower air passage 100B. In the region where the heating heat exchanger 140 of the lower air passage 100B does not exist, the air flowing through the lower air passage 100B does not pass through the lower portion 140B of the heating heat exchanger 140 (bypassing the lower portion 140B). This is a bypass path 153B that allows flow to the downstream side of the heat exchanger 140 for heating.

Between the cooling heat exchanger 110 and the heating heat exchanger 140, the upper air passage 100A and the lower air passage 100B are provided with an upper temperature control door 161D and a lower temperature control door 162D, respectively. By rotating the upper temperature control door 161D around a rotation shaft 161R extending in the horizontal direction (vertical direction on the paper surface in FIG. 1), the ratio of air passing through the heating heat exchanger 140 in the upper air passage 100A is adjusted. Can be done. Similarly, by rotating the lower temperature control door 162D around a rotating shaft 162R extending in the horizontal direction, the proportion of air passing through the heating heat exchanger 140 in the lower air passage 100B can be adjusted.

A mixing chamber 170 is formed on the downstream side of the heating heat exchanger 140 of the air conditioning case 150. The mixing chamber 170 faces the upper air passage 100A and the lower air passage 100B, and the air flowing through the respective air passages 100A and 100B flows into the mixing chamber 170. A two-layer mode adjusting door 163D is provided between the position facing the upper air passage 100A and the position facing the lower air passage 100B. By appropriately rotating the two-layer mode adjustment door 163D around the rotation shaft 163R extending in the horizontal direction (vertical direction on the paper surface in FIG. 1), the air flowing through the upper air passage 100A and the lower air passage 100B flowed. The two-layer mode adjustment door 163D can be positioned between a closed position that prevents mixing with air and an open position that does not interfere with mixing. FIG. 1 shows an aspect in which the two-layer mode adjustment door 163D is positioned at the closed position.

The defroster outlet passage 172, the vent outlet passage 174, and the foot outlet passage 176 face the mixing chamber 170. The air in the mixing chamber 170 can flow into each of the defroster outlet passages 172, the vent outlet passage 174, and the foot outlet passage 176.

The downstream end of the defroster outlet passage 172 is connected to a defroster outlet (not shown) that blows air toward the inner surface of the windshield in the vehicle interior. The downstream end of the vent outlet aisle 174 is connected to a vent outlet (not shown) that blows air toward the upper body of the occupant sitting in the driver's seat and the passenger seat (and in some cases the rear seat). The downstream end of the foot outlet aisle 176 is connected to a foot outlet (not shown) that blows air toward the feet of occupants sitting in the driver's seat and the passenger seat (and in some cases the rear seat).

The defroster outlet passage 172, the vent outlet passage 174, and the foot outlet passage 176 include a defroster door 172D, a vent door 174D, and a foot door 176D for adjusting the opening degree (that is, the opening area) of these outlet passages 172, 174, and 176, respectively. It is provided. The opening degree of each of the defroster door 172D, the vent door 174D and the foot door 176D can be controlled by controlling the angular positions of the doors 172D, 174D and 176D.

Next, a method of assembling the blower portion 10 and the air conditioning portion 100 will be described. First, the blower unit 10 and the air conditioning unit 100 are assembled. Specifically, the direction of the blower portion 10 and the air conditioning portion 100 from the direction D1 in which the blower portion partition plate 20 extends from the lower air flow path 10B to the direction parallel to the downstream end side 20d of the blower portion partition plate 20. The fitting portion 51 and the connecting portion 151 are brought into contact with each other by approaching them from any direction from D2 and from the vertical direction D3 (specifically, the connecting portion 151 is brought from below the fitting portion 51). After that, if necessary, the blower portion 10 and the air conditioning portion 100 are fixed by using a well-known fastener such as a clip or screw, or a claw-shaped fastening means integrally formed with the air conditioning case 150, for a vehicle. Let it be the air conditioner 1. Next, the vehicle air conditioner 1 is mounted on a partition wall of the vehicle (a wall that separates the engine room and the passenger room, and is sometimes called a dash panel or a fire wall). At this time, the first opening 75 of the air intake housing 70 is located near the outlet of the outside air introduction path provided in the vehicle, and the second opening 76 and the third opening 77 are opened in the vehicle interior. , Will be installed.

Next, the operation of the vehicle air conditioner shown in FIGS. 1 to 3 will be described.

In the first operation mode of the vehicle air conditioner, the first switching door 73 of the blower portion 10 is set as the first position, the first opening 75 is opened, and the second opening 76 is closed. Further, the second switching door 74 is set to the second position, and the third opening 77 is closed. In this case, the outside air AE introduced into the air intake housing 70 from the first opening 75 passes through the outside of the separation cylinder 30 and flows into the upper half of the blade row 6A of the impeller 5 and the first air flow. A second air flow that passes through the inside of the separation cylinder 30 and flows into the lower half of the blade row 6A of the impeller 5 is formed. The first operation mode is sometimes called an outside air mode.

In the second operation mode, the first switching door 73 is set as the first position, the first opening 75 is opened, and the second opening 76 is closed. Further, the second switching door 74 is set to the first position, and the third opening 77 is opened. In this case, the outside air AE introduced into the air intake housing 70 from the first opening 75 forms a first air flow that passes through the outside of the separation cylinder 30 and flows into the upper half of the blade row 6A of the impeller 5. do. Further, the inside air AR introduced from the third opening 77 passes through the inside of the separation cylinder 30 and forms a second air flow that flows into the lower half of the blade row 6A of the impeller 5. As is clear from FIG. 1, the second switching door 74 at the first position divides the space above the filter 79 into a space on the first opening 75 side and a space on the third opening 77 side. It prevents the outside air AE and the inside air AR from being mixed above the filter 79. That is, the second switching door 74 at the first position has a function of a separation wall that separates the outside air AE and the inside air AR above the filter 79 in the second operation mode. The second operation mode is sometimes called an inside / outside air two-phase flow mode.

In the third operation mode, the first switching door 73 is set to the second position, the first opening 75 is closed, and the second opening 76 is opened. Further, the second switching door 74 is set to the first position, and the third opening 77 is opened. In this case, the inside air AR introduced into the air intake housing 70 from the second opening 76 and the third opening 77 passes through the outside of the separation cylinder 30 and flows into the upper half of the blade row 6A of the impeller 5. One air flow and a second air flow that passes through the inside of the separation cylinder 30 and flows into the lower half of the blade row 6A of the impeller 5 are formed. The third operation mode is sometimes called a shy mode.

The first air flow that has flowed into the upper half of the blade row 6A flows into the upper air flow path 10A, and then flows into the upper air passage 100A of the air conditioning unit 100. Further, the second air flow that has flowed into the lower half of the blade row 6A flows into the lower air flow path 10B, and then flows into the lower air passage 100B of the air conditioning portion 100. Then, these air streams pass through the cooling heat exchanger 110. In the cooling heat exchanger 110, the moisture in the air is condensed to generate condensed water. The condensed water flows down to the drainage region 130 located below the cooling heat exchanger 110 and is discharged from the discharge port 131. The air flow that has passed through the cooling heat exchanger 110 passes through the heating heat exchanger 140, or passes through the bypass paths 153A and 153B around the heating heat exchanger 140, and flows into the mixing chamber 170. .. The air flow flowing into the mixing chamber 170 is blown out from each outlet through the outlet passages 172, 174, 176.

In the second operation mode (inside / outside air two-phase flow mode), the two-layer mode adjustment door 163D is positioned at the closed position. The air flowing through the upper air passage 100A can be passed through the defroster outlet passage 172 and the vent outlet passage 174, while the air is prohibited from flowing through the foot outlet passage 176. At the same time, the air flowing through the lower air passage 100B can be passed through the foot outlet passage 176, while the passage through the defroster outlet passage 172 and the vent outlet passage 174 is prohibited.

In the first operation mode (outside air mode) and the third operation mode (inside air mode), the two-layer mode adjustment door 163D is positioned in the open position. The air flowing through the upper air passage 100A and the air flowing through the lower air passage 100B can be mixed in the mixing chamber 170. As a result, the air flowing through the upper air passage 100A can be passed through any of the defroster outlet passage 172, the vent outlet passage 174, and the foot outlet passage 176. At the same time, the air flowing through the lower air passage 100B can be passed through any of the defroster outlet passage 172, the vent outlet passage 174, and the foot outlet passage 176.

In the first operation mode and the second operation mode, the rainwater or the like W that has entered the upper air flow path 10A of the air-conditioning unit 10 together with the outside air is discharged by the air-conditioning unit partition plate 20 to the lower air-conditioning unit 100. It is guided above 100B, especially above drainage area 130 in the illustrated example. Then, at the downstream end side 20d, the water flows down into the lower air passage 100B, particularly in the lower drainage region 130 in the illustrated example, and is discharged from the discharge port 131.

<Modification example 1>
Next, a modification 1 of the air conditioner 1 according to the first embodiment will be described with reference to FIGS. 4 and 5. FIG. 4 is a view corresponding to FIG. 2, which is a perspective view schematically showing a scroll housing, a blower partition plate, and a connection portion of an air conditioner case according to the first modification. FIG. 5 is a view corresponding to FIG. 3, which is a plan view schematically showing a lower scroll member, a lower air conditioning case member, a blower partition plate, and an air conditioner partition plate of the air conditioner shown in FIG. be.

In the modified example 1 shown in FIGS. 4 and 5, the lower layer fitting end portion 92 extends non-parallel to the downstream end side 20d as compared with the scroll housing 50 and the blower partition plate 20 shown in FIGS. 1 to 3. It is different in that it is. Other configurations are substantially the same as those of the air conditioner 1 shown in FIGS. 1 to 3. In the modified example 1 shown in FIGS. 4 and 5, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

Even in such an air conditioner 1, in the assembling work of the blower portion 10 and the air conditioning portion 100, the fitting portion 51 and the connection portion 151 are connected, and at least the blower portion partition plate 20 is the lower air flow of the blower portion 10. From the direction D1 extending from the path 10B, from the direction D2 parallel to the downstream end side 20d of the blower partition plate 20, and from the vertical direction D3 (the connecting portion 151 is fitted from below the fitting portion 51 or fitted. The section 51 may be connected (from above the connecting section 151).

<Modification 2>
Next, a modification 2 of the air conditioner 1 according to the first embodiment will be described with reference to FIG. FIG. 6 is a view corresponding to FIG. 2, which is a perspective view schematically showing a scroll housing, a blower partition plate, and a connection portion of an air conditioner case according to the second modification.

The scroll housing 50 shown in FIG. 6 is different from the scroll housing 50 in FIGS. 1 to 3 in the relative positions of the upper layer fitting end portion 91 and the downstream end side 20d of the blower partition plate 20. .. Other configurations are substantially the same as the scroll housing 50 shown in FIGS. 1 to 3. In the modified example 2 shown in FIG. 6, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In the examples shown in FIGS. 6 and 7, the upper layer fitting end 91 is located in the air flow from the fitting 51 to the cooling heat exchanger 110, and thus in the direction of the air flow through the cooling heat exchanger 110. , It is located on the downstream side of the downstream end side 20d of the blower partition plate 20. In other words, in the air flow, the portion corresponding to the fitting portion 51 of the upper scroll member 61 extends to the downstream side of the downstream end side 20d of the blower portion partition plate 20. The upper air conditioning case member 161 is formed corresponding to such an upper scroll member 61.

Even in such an air conditioner 1, in the assembling work of the blower portion 10 and the air conditioning portion 100, the fitting portion 51 and the connection portion 151 are connected, and at least the blower portion partition plate 20 is the lower air flow of the blower portion 10. From the direction D1 extending from the path 10B, from the direction D2 parallel to the downstream end side 20d of the blower partition plate 20, and from the vertical direction D3 (the connecting portion 151 is fitted from below the fitting portion 51 or fitted. The section 51 may be connected (from above the connecting section 151).

<Second Embodiment>
Next, the air conditioner 1A according to the second embodiment will be described with reference to FIGS. 7 to 9. FIG. 7 is a view corresponding to FIG. 1, which is a cross-sectional view schematically showing the structure of a blower portion and an air conditioning portion of the air conditioner according to the second embodiment of the present invention. FIG. 8 is a view corresponding to FIG. 2, which is a perspective view schematically showing a scroll housing of the air conditioner shown in FIG. 7, a partition plate for a blower portion, and a connection portion of an air conditioner case. FIG. 9 is a cross-sectional view schematically showing the water leakage prevention plate provided in the scroll housing shown in FIG. 8 along the extending direction of the water leakage prevention plate.

The air conditioner 1A shown in FIGS. 7 to 9 is different from the air conditioner 1 shown in FIGS. 1 to 3 in that the fitting portion 51 is provided with the water leakage prevention plate 80. Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1 to 3. In the second embodiment shown in FIGS. 7 to 9, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

A water leakage prevention plate 80 that is connected or extended from below to the bottom surface 51b of the fitting portion 51 and extends to the lower region of the connecting portion 151 is further provided. In the illustrated example, the water leakage prevention plate 80 extends along the bottom surface 151b of the connecting portion 151.

In such an air conditioner 1A, the water leakage prevention plate 80 allows rainwater or the like leaked from the boundary between the lower layer fitting end portion 92 of the blower portion 10 and the lower layer connection end portion 192 of the air conditioning portion 100 to be leaked. The 80 can guide you to the desired location. For example, rainwater or the like leaking from the boundary can be guided to a part away from the vehicle control electronic device which may be arranged at the feet of the occupant or below the air conditioner 1A. Even if rainwater or the like leaks from the connection portion and drips into the interior of the vehicle, it is possible to prevent or suppress the spread of defects due to the leakage. Further, by providing such a water leakage prevention plate 80 in the blower portion 10, it becomes easier to optimize the mutual positional relationship in the process of bringing the blower portion 10 and the air conditioning portion 100 close to each other, and the workability of assembly is improved. can.

Further, even in such an air conditioner 1A, in the assembling work of the blower portion 10 and the air conditioning portion 100, the fitting portion 51 and the connection portion 151 are connected, and at least the blower portion partition plate 20 is on the lower side of the blower portion 10. It may be connected from the direction D1 extending from the air flow path 10B and from the direction D2 parallel to the downstream end side 20d of the blower partition plate 20.

<Third embodiment>
Next, the air conditioner 1B according to the third embodiment will be described with reference to FIGS. 10 and 11. FIG. 10 is a view corresponding to FIG. 1, which is a cross-sectional view schematically showing the structure of a blower portion and an air conditioning portion of an air conditioner according to a third embodiment of the present invention. 11 is a view corresponding to FIG. 3, and is a plan view schematically showing a lower scroll member, a lower air conditioning case member, a blower partition plate, and an air conditioning portion partition plate of the air conditioner shown in FIG. ..

The air conditioner 1B shown in FIGS. 10 and 11 is different from the air conditioner 1 shown in FIGS. 1 to 3 in that the air blower partition plate 20 is provided with a communication hole 201. Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1 to 3. In the third embodiment shown in FIGS. 10 and 11, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

The blower partition plate 20 has a communication hole 201 that communicates the upper passage (upper air flow path 10A) and the lower passage (lower air passage 100B) of the blower partition plate 20. The communication hole 201 allows water in the upper passage (upper air passage 10A) to flow into the lower passage (lower air passage 100B). The communication hole 201 is located on the downstream side of the lower layer connection end portion 192 of the air conditioning case 150 in the air flow from the fitting portion 51 to the cooling heat exchanger 110. That is, the communication hole 201 is provided at a position above the lower air passage 100B of the air conditioning portion 100. Therefore, the rainwater or the like W guided by the blower partition plate 20 can flow down to the lower blower path 100B in the communication hole 201.

In the illustrated example, the communication hole 201 is provided at a position above the drainage region 130. Then, the rainwater or the like W that has flowed into the lower air passage 100B through the communication hole 201 flows down to the drainage region 130. The rainwater or the like W that has flowed into the drainage region 130 is guided to the discharge port 131 by an inclined surface 132 that inclines downward toward the discharge port 131, and is discharged to the outside of the air conditioner 1 through the discharge port 131.

The shape of the communication hole 201 is arbitrary, but as shown in FIG. 11, for example, in a plan view of the blower partition plate 20, a V-shape that tapers toward the downstream side of the air flow of the blower partition plate 20. It is preferable that the shape (that is, the V-shaped bent portion is arranged on the downstream side of the air flow from both ends of the V-shape). If the communication hole 201 has such a shape, the rainwater or the like W adhering to the communication hole 201 is smoothly guided to the drainage region 130. That is, the rainwater or the like W adhering to the communication hole 201 is collected at the V-shaped bent portion according to the air flow and becomes large water droplets, which flow down downward, so that there is a low possibility that the rainwater or the like will stay in the communication hole 201.

Even in such an air conditioner 1B, the rainwater or the like W that has entered the upper air flow path 10A of the blower portion 10 is tilted upward regardless of the blowing direction of the blower portion 10 (the bottom surface of the lower air flow path 10B is inclined upward). Regardless of whether or not it is configured to have), it can be guided to the lower air passage 100B of the air conditioning unit 100. In particular, in the illustrated example, the blower partition plate 20 receives rainwater or the like W that has entered the upper air passage 10A regardless of the shape of the passages 10B and 100B on the lower side of the air conditioner 1B and the blowing direction of the blower 10. It can be guided to the drainage area 130.

<Fourth Embodiment>
In the above description, the air-conditioning case 150 has an upper air-conditioning case member 161 and a lower air-conditioning case member 162 located below the upper air-conditioning case member 161. The side air conditioning case member 162 is integrally formed in the vertical direction (direction shown as D3 in each of FIGS. 2, 4 and 6), and the width direction of the connecting portion 151 (FIGS. 2, 4 and 6). , Each of FIG. 8 may be configured to be divided in the direction shown as D2) (not shown). The divided structure of the air conditioning case 150 is appropriately selected depending on the convenience of production or quality.

The air conditioning case 150 has an air conditioning case 150 such that the connecting portion 151 of the air conditioning portion 100 has an upper layer connecting end portion 191 connected to the upper layer fitting end portion 91 and a lower layer connecting end portion 192 connected to the lower layer fitting end portion 92. By being formed, the fitting portion 51 and the connecting portion 151 can be brought into contact with each other by approaching each other in any of the directions D1, D2, and D3. Further, as shown in FIG. 8, the blower portion 10 and the air conditioning portion 100 can be brought close to each other in any of the directions D1 and D2 to bring the fitting portion 51 and the connecting portion 151 into contact with each other. can.

Since the vehicle air conditioner according to the present invention can be industrially manufactured and can be the subject of commercial transactions, it can be industrially used with economic value.

1, 1A, 1B Vehicle air conditioner 10 Blower 5 Impeller 6 Impeller wing 6A Blade row 13 Motor 20 Blower partition plate 20d Downstream end 20S Blower partition plate top surface 30 Separation cylinder 50 Scroll housing 50e winding End 51 Fitting part 61 Upper scroll member 62 Lower scroll member 70 Air intake housing 80 Water leakage prevention plate 91 Upper layer fitting end 92 Lower fitting end 100 Air conditioning part 110 Cooling heat exchanger 130 Drainage area 131 Discharge port 132 Inclined surface 140 Heat exchanger for heating 150 Air conditioning case 151 Connection part 161 Upper air conditioning case member 162 Lower air conditioning case member 191 Upper layer connection end 192 Lower layer connection end 201 Communication hole Ax rotation axis

Claims (5)

An air conditioner (1) for vehicles
A motor (13), an impeller (5) that is rotationally driven by the motor (13) to blow out air, an internal space that accommodates the impeller (5), and a fitting portion (51) that opens in the circumferential direction. With a scroll housing (50), with a blower (10),
An air conditioner having a cooling heat exchanger (110), an internal space accommodating the cooling heat exchanger (110), and a connecting portion (151) connected to the fitting portion (51) of the scroll housing (50). An air conditioner (100) having a case (150) and
With
The blower portion (10) further raises the region between the inner peripheral surface of the scroll housing (50) and the outer peripheral surface of the impeller (5), and the internal space of the fitting portion (51). It has a blower partition plate (20) that divides the air flow path (10A) and the lower air flow path (10B).
The downstream end of the fitting portion (51) in the air flow from the fitting portion (51) to the cooling heat exchanger (110) is located above the blower partition plate (20). It has an upper layer fitting end portion (91) and a lower layer fitting end portion (92) located below the blower partition plate (20).
The connection portion (151) includes an upper layer connection end portion (191) connected to the upper layer fitting end portion (91), a lower layer connection end portion (192) connected to the lower layer fitting end portion (92), and the lower layer connection end portion (192). Have,
In the flow of air from the fitting portion (51) to the cooling heat exchanger (110), the lower layer connection end portion (192) is a downstream end side (20d) of the blower partition plate (20). The air conditioner (91) located on the upstream side of the air conditioner, and the upper layer fitting end (91) is located at the same position as the downstream end (20d) or on the downstream side of the downstream end (20d). 1, 1A, 1B). The upper surface of the blower partition plate (20) is from a portion corresponding to the winding end (50e) of the inner peripheral surface of the scroll housing (50) to the downstream end side (20d) of the blower partition plate (20). ), The air conditioner (1, 1A, 1B) according to claim 1, which is substantially horizontal or inclines downward. When viewed in the direction from the upper air flow path (10A) to the lower air flow path (10B), the lower layer fitting end portion (92) is the downstream end side of the blower partition plate (20). The air conditioner (1, 1A, 1B) according to claim 1 or 2, which extends in parallel with (20d). When viewed in the direction from the upper air flow path (10A) to the lower air flow path (10B), the lower layer fitting end portion (92) is the downstream end side of the blower partition plate (20). The air conditioner (1, 1A, 1B) according to claim 1 or 2, which extends non-parallel to (20d). A water leakage prevention plate (80) that is connected or extended from below to the bottom surface (51b) of the fitting portion (51) and extends to a lower region of the connecting portion (151), and is the air conditioner (1A). Further, a water leakage prevention plate (80) for guiding the leaked water to a predetermined place when the water inside leaks from the boundary between the lower layer fitting end portion (92) and the lower layer connection end portion (192). The air conditioner (1A) according to any one of claims 1 to 4, which is provided.

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